Unusual Carven Ladies Watch Paris

I hope the pictures came up, I just discovered the site. I can't figure this watch out. It is marked Carven Paris, at the bottom of the dial it is marked Swiss Made. On the back it is marked Carven and the number 5428 0024 The dial is a light gray with diamond looking stones all the way around the edge instead of numbers. Here is the strange part, the chain, which looks original and could be sterling although I can find no marks, measures 14 3/4 inches. I cannot figure out how or where a lady would wear it? Does anyone know anything about this watch?